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  • Lattice energy for binary salts are find out by born haber cycle but . . .
    Well, you do it in the same way, but with different coefficients, and one more step As with binary salts, construct a Born-Haber cycle by using Hess' law to make a closed loop Reversed reactions have a negative sign in front of DeltaH, and scaled reactions scale DeltaH by that constant The lattice energy is the energy released when the solid forms from the gaseous ions, so you must form
  • Question #8bcb2 - Socratic
    The reaction releases 7 71 L of "H"_2 > Here are the steps to follow: First, write the balanced equation for the reaction Use the molar mass to convert grams of "Mg" to moles of "Mg" Use the molar ratio between "Mg" and "H"_2 to get the moles of "H"_2 Finally, use the molar volume to convert moles of "H"_2 to litres of "H"_2 Let’s see how this works 1 The balanced equation is "Mg
  • Question #71b91 - Socratic
    Since water is in excess, "67 7 g MgO" are needed to produce "98 0 g Mg(OH)"_2 Balanced equation "MgO(s) + H"_2"O(l)"rarr"Mg(OH)"_2("s")" Moles magnesium hydroxide Start with the given mass of "Mg(OH)"_2 and convert it to moles by dividing by its molar mass ("58 319 g mol") Since molar mass is a fraction, "g" "mol", we can divide by multiplying by the reciprocal of the molar mass, "mol" "g
  • Answers created by Noah G - Socratic
    Q A and Videos that make learning easy Math, History, Chemistry, Algebra, Calculus, Biology and more
  • Two objects have masses of #36 MG# and #18 MG#. How much . . . - Socratic
    Two objects have masses of #36 MG# and #18 MG# How much does the gravitational potential energy between the objects change if the distance between them changes from #81 m# to #27 m#?
  • Question #a667e - Socratic
    90 5% balanced equation: 2Mg + O_2 rarr 2MgO on the reactant side, there are 2 atoms of magnesium reacting for every 2 oxygen atoms the ratio between magnesium and oxygen is 2:2 this simplifies to 1:1, meaning that the reacting amounts of magnesium and oxygen will have the same number of moles calculating the no of moles in magnesium: n = m M number of moles = mass molar mass relative
  • When magnesium reacts with oxygen,nature of bond formed is?
    This is probably best described as an ionic bond Mg (s) +1 2O_2 (g) rarr MgO (s) We could represent the oxide as Mg^ (2+)O^ (2-) And is this an oxidation reaction? Why or why not?
  • Why should the first ionization energy of magnesium,
    Consider electronic configuration: Al: [Ne]3s^(2)3p^1; Mg: [Ne]3s^2 A priori, we would expect it to be easier to remove an electron from a p orbital than an s orbital from the same shell The p orbitals clearly have zero electron density at the nucleus We might expect that the nuclear attraction for s orbitals of the same shell to be greater (why so?) Because we are physical scientists, we
  • Which acids or bases do NOT give #H^ (+)# upon dissolution?
    I will give just a few reaction equations: Acid plus metal: 2H^+(aq) +Mg(s)->Mg^(2+)(aq) +H_2(g) Acid plus oxide: 2H^+(aq) +FeO(s)->Fe^(2+)(aq) +H_2O(l) Acid plus





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